Information
Simple Network Management Protocol (SNMP) facilitates the management of networked devices. Minimize attack surface by disabling non-essential services. The recommended setting is to have the SNMP service stopped unless required and configured securely.
Deactivating SNMP when it's not needed reduces the attack surface, adhering to a minimalistic approach in service operation.
Solution
- Disable SNMP when not required with:
esxcli system snmp set --enable false
If SNMP is required, restrict targets/communities, prefer secure SNMP configurations supported by the environment, and limit the ESXi firewall ruleset to authorized management networks.
Impact:
While there isn't a direct functional impact, the absence of SNMP may require alternative methods for network management and monitoring.